Police hope distinctive evidence leads to homicide suspect

Police have received dozens of tips so far, but still have made no arrests in Tucson's deadly convenience store stabbing.

22-year-old Erick Bridges died less than 24 hours after somebody attacked him at an AM/PM store on East Tanque Verde Road on May 17.

We take a closer look in tonight's Tucson's Most Wanted.

Whoever did this knew exactly what he was doing. He walked directly into the store, didn't demand a thing, then went straight for Bridges.

Thanks to surveillance video, we got a pretty good look at the attacker. Now, thanks to Tucson Police, we get an even better look at what he was wearing.

The surveillance video shows a white or Hispanic man in his early 20s, jumping over a convenience store counter and brutally attacking Bridges.

But it's these images that could very well make a break in the case.

"We're fairly confident that those belong to the person that was involved in this incident," Tucson Police Sgt. Chris Widmer said about two valuable pieces of evidence authorities recovered after the attack.

"The sweatshirt itself has some distinct writing on the back of it. We're hoping someone recognizes it and is able to give us information," Widmer says.

"As well as the backpack. It's dark colored, but has some pretty specific writing on the back of it that we're hoping someone will recognize and give us a call about."

Investigators aren't alone.

Family and friends of Erick Bridges are still in shock over an act so senseless and so violent, it's left those closest to him feeling isolated and empty.

"As soon as I heard the news he was gone and that he wouldn't make it, I lost pretty much all meaning to life," says the victim's fiance Christina Brown.

Last weekend, loved ones gathered to show their support for the family, a remembrance walk and candlelight vigil to bring greater awareness to the case.

"Who did this and why?" asked Michelle Becker, a concerned east-side citizen. "There's no reason why anybody had to do this to Erick. He's a wonderful kid."

Tucson Police tell us they're making progress and are currently working some very good leads, but they still need help from the public.

"The big thing is if someone were to recognize that sweatshirt and that backpack and give us that information," Widmer says.

If you have any information, call 911 or 88-CRIME, the Pima County Attorney's anonymous tip line.

Thanks to BP, the company that own AM/PM, a reward up to $27,000 will go to the person whose tip leads to an arrest in this unsolved case.